Balance the chemical equation a) na + cl2 > nacl b) 2na + cl2 > nacl c) 2na + cl2 > 2nacl d) 2na + 2cl2 > 2nacl

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius